Ranghar Pavilion is a double-storied royal pavilion of Ahom kings with unique architectural features. The central unit of the ground plan is rectangular and annexed with small structures of trapezoid ends making the entire ground plan like an octagon. The roof of the structure is parabolic which supported by rows of massive columns and semi-circular arches and shows Islamic influence in architectural features. A unique pleasure boat with makara ending marks outer beauty of the structure and a trefoil arch canopy rests at the top of the structure. It is believed that the pavilion was built by Ahom king Pramatta Singha (AD 1744-1750) for watching various games by families of royals.